My lung collapsed several times a few years ago and I was wondering if it is a good idea to smoke now. I have been wanting to grow but I am terrified that if I smoke my lungs will collapse again. I have only smoked a few times since this happened and everytime I feel like my lungs collapsed again or am afraid they are going to collapse. Is it safe to smoke after your lungs collapse? Would it be safe to vaporize? Does anyone know if smoking was a major cause of my lungs collapsing? The doctor's said it was spontaneous and that it is common in thin young men. Do you think it is a good idea to start smoking again, but very lightly? Or should I just cook my cannabis? One last question, what is the high like of cooked cannabis compared to smoked? Thanks.